American Bioregion Library

Official American Sub-Bioregion Hero Portals
Sub-Bioregional Portal I

Arctic & Subarctic Bioregion Library

Circumpolar tundra hydrology, sea-ice dynamics, sea-mammal hunting ethics, and the ancestral ecological knowledge of Inuit, Inupiat, and Yupik communities.
Sub-Bioregional Portal II

Boreal Forest Bioregion Library

Taiga woodland ecology, peatland carbon sinks, birch-bark canoe engineering, and the living heritage of Dene, Cree, and Innu peoples.
Sub-Bioregional Portal III

North Atlantic Coastal Bioregion Library

Estuarine fisheries, coastal salt marshes, hardwood agroforestry, and the governance of Haudenosaunee, Mi’kmaq, and Wampanoag nations.
Sub-Bioregional Portal IV

Pacific Coastal–Temperate Rainforest Library

Ancient cedar forestry, wild salmon stewardship, totem carving iconography, and the maritime culture of Haida, Tlingit, Coast Salish, and Nuu-chah-nulth nations.
Sub-Bioregional Portal V

Rocky–Sierra–Cordillera Mountain Library

High-altitude alpine ecology, headwater watershed conservation, cultural fire management, and the mountain traditions of Shoshone, Ute, and Salish communities.
Sub-Bioregional Portal VI

Mesoamerican Bioregion Library

Milpa companion agriculture, volcanic valley terracing, cenote karst hydrology, hieroglyphic writing, and the heritage of Maya, Nahua, Zapotec, and Mixtec peoples.
Sub-Bioregional Portal VII

Caribbean–Island Bioregion Library

Insular tropical marine biology, coral reef protection, hurricane resilience, cassava conuco farming, and Taíno and Kalinago ancestral heritage.
Sub-Bioregional Portal VIII

Northern Andes Bioregion Library

Páramo high-altitude wetland hydrology, cloud forest biodiversity, gold craftsmanship, and the heritage of Chibcha, Muisca, and Nasa communities.
Sub-Bioregional Portal IX

Amazon Basin Bioregion Library

The world’s largest tropical rainforest, riverine floodplain ecology, terra preta soil science, ethnobotanical medicine, and the stewardship of Yanomami, Kayapó, and Asháninka peoples.
Sub-Bioregional Portal X

Orinoco–Guiana Shield Bioregion Library

Tepui tabletop mountain ecosystems, Gran Sabana ecology, blackwater river systems, and the territory of Piaroa, Pemon, and Warao communities.
Sub-Bioregional Portal XI

Andean Highlands & Dry Valleys Library

High-altitude terrace agriculture (andenes), camelid pastoralism, water canal engineering, textile arts, and the knowledge of Quechua and Aymara societies.
Sub-Bioregional Portal XII

Chaco–Pantanal Bioregion Library

The world’s largest tropical wetland system, dry forest fauna, river pulse dynamics, and the knowledge of Guaraní, Nivaclé, and Ayoreo peoples.
Sub-Bioregional Portal XIII

Cerrado–Caatinga Bioregion Library

Central Brazilian savanna biodiversity, semi-arid thorny scrub biomes, water table recharge, and the territory of Xavante, Kraho, and Fulni-ô communities.
Sub-Bioregional Portal XIV

Atlantic Forest Bioregion Library

The biodiverse Mata Atlântica, coastal mountain streams, endemic flora restoration, and the heritage of Tupinambá and Guaraní Mbyá communities.
Sub-Bioregional Portal XV

Pampas–La Plata Bioregion Library

Temperate grassland soil science, Rio de la Plata estuarine hydrology, equestrian traditions, and the memory of Charrua, Het, and Rankülche communities.
Sub-Bioregional Portal XVI

Patagonian–Subantarctic Library

Wind-swept steppe dynamics, Fuegian archipelago canoeing, Valdivian temperate rainforests, and the stewardship of Mapuche, Selk’nam, Yaghan, and Kawésqar peoples.

African Bioregion Library

Official African Sub-Bioregion Hero Portals
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Sahara & Oasis Desert Bioregion Library

Hyper-arid desert ecosystems, ancient oasis hydrology, subterranean foggaras, caravan routes, and the ecological wisdom of Tuareg and Berber communities.
Sub-Bioregional Portal II

Sahel Semi-Arid Transition Library

Semi-arid savanna belts, transhumance pastoral mobility, Great Green Wall anti-desertification, and customary land tenure of the Fulani and neighbors.
Sub-Bioregional Portal III

North African Mediterranean–Atlas Library

Mediterranean montane biomes, Atlas terraced agriculture, cork oak forests, coastal marine biology, and the heritage of Amazigh (Berber) societies.
Sub-Bioregional Portal IV

West African Savannah–Forest Mosaic Library

Sacred groves, agroforestry mosaics, Niger and Volta river basins, bronze and textile arts, and the worldviews of Yoruba, Dogon, and Akan peoples.
Sub-Bioregional Portal V

Central African Congo Rainforest Library

Earth’s second largest tropical rainforest, Congo Basin hydrology, canopy biodiversity, carbon science, and the forest knowledge of BaAka and Mbuti communities.
Sub-Bioregional Portal VI

East African Rift Valley–Highlands Library

The volcanic Great Rift Valley, montane forests, wildlife corridors, pastoralist cattle traditions, and the continuity of Maasai, Kikuyu, and Oromo societies.
Sub-Bioregional Portal VII

Horn of Africa Drylands & Highlands Library

The Ethiopian Massif, Simien biodiversity, endemic flora, frankincense dryland forestry, terraced agriculture, and the cultural archives of the Horn.
Sub-Bioregional Portal VIII

Southern African Savanna–Karoo–Cape Library

The Cape Floristic Region hotspot, fynbos botany, Namib and Kalahari adaptations, and the rock art and ethnobotany of San and Khoikhoi communities.
Sub-Bioregional Portal IX

African Great Lakes Basin Library

Lake Victoria, Tanganyika, and Malawi ecosystems, lacustrine fisheries, cichlid evolutionary science, and the traditions of Great Lakes societies.

Asian Bioregion Library

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Sub-Bioregional Portal I

Siberian Boreal & Arctic Tundra Library

Permafrost dynamics, northern taiga ecology, reindeer pastoralism, and the knowledge of Evenki, Nenets, Sakha, and Chukchi communities across subarctic Eurasia.
Sub-Bioregional Portal II

Central Asian Steppe & Desert Library

Vast grassland steppes, Gobi desert adaptations, nomadic horse culture, Silk Road oases, and pasture governance of Kazakh, Kyrgyz, and Mongolian herdsmen.
Sub-Bioregional Portal III

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Temperate broadleaf forests, monsoon river basins, Satoyama stewardship, rice-paddy agroecology, and the heritage of Ainu, Han, and Korean communities.
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The Tibetan Plateau (“Third Pole”), glacier hydrology, yak pastoralism, sacred mountain geography, and the science of Tibetan, Sherpa, and Ladakhi societies.
Sub-Bioregional Portal V

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The Indus, Ganges, and Brahmaputra floodplains, monsoon agriculture, Sundarbans mangrove ecology, and the water-harvesting systems of South Asia.
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Wallacea and Sundaland hotspots, equatorial canopy science, maritime voyaging, and the forest stewardship of Orang Asli, Dayak, Hmong, and Ifugao communities.
Sub-Bioregional Portal VII

Southwest Asian Arid–Oasis–River Library

The Tigris-Euphrates Fertile Crescent, ancient qanat canal engineering, date-palm oasis polyculture, and Near Eastern riverine agricultural heritage.
Sub-Bioregional Portal VIII

Arabian Peninsula Desert–Oasis Library

Rub’ al Khali hyper-arid ecology, Red Sea and Persian Gulf coral reefs, Bedouin nomadic navigation, and traditional frankincense dryland forestry.

European Bioregion Library

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Arctic–Nordic Europe Bioregion Library

Fennoscandian tundra ecosystems, boreal taiga dynamics, Arctic maritime navigation, and the reindeer herding knowledge of the Sámi across Sápmi.
Sub-Bioregional Portal II

Atlantic–Celtic Coast Bioregion Library

Coastal temperate rainforests, estuarine tidal hydrology, island agroforestry, fishing commons, and the oral traditions of Celtic and Atlantic communities.
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Western European Interior Bioregion Library

Broadleaf deciduous woodland conservation, Rhine, Seine, and Loire river management, hedgerow ecology, and historical landscape architecture.
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Mediterranean Europe Bioregion Library

Evergreen sclerophyllous scrublands (maquis and garrigue), terraced olive and vine polyculture, and the wisdom of Basque, Iberian, Italic, and Hellenic cultures.
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Alpine–Carpathian Mountain Spine Library

High-altitude alpine grasslands, glacial headwater hydrology, transhumance pastoralism, and the knowledge of Alpine and Carpathian mountain societies.
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Central European Green Heart Library

Mixed beech and oak forest ecosystems, Danube basin hydrology, traditional silviculture, and community-based watershed management.
Sub-Bioregional Portal VII

Northern Lowland–Baltic Bioregion Library

Coastal dune systems, post-glacial lacustrine wetlands, amber-bearing littoral zones, and the ancestral heritage of Baltic and Finno-Ugric peoples.
Sub-Bioregional Portal VIII

Eastern Forest–Steppe Bioregion Library

Chernozem black-soil science, forest-steppe biomes, Dnieper and Volga corridor protection, and Slavic oral epic and agricultural calendars.
Sub-Bioregional Portal IX

Balkan Mountain–Valley Bioregion Library

Dinaric Alps karst landscapes, subterranean hydrology, endemic Balkan flora, transhumance routes, and Southeastern European ethnobotanical traditions.
Sub-Bioregional Portal X

Black Sea–Caucasus Gateway Library

Caucasus biodiversity hotspots, Colchic temperate rainforests, ancient agrobiodiversity, and the linguistic and ecological heritage of Caucasian peoples.
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Understanding Mayan Astrology: The Tzolk’in Calendar and Nahual Significance

Maya Library Free Download Astrology Report Nawal Nahual

Deciphering the Ancient Maya’s Cosmic Framework

The Tzolk’in calendar, a 260-day sacred cycle, holds the key to understanding Mayan astrology. This complex system, comprising over 400 glyphs, weaves together astronomy, mythology, and the human experience. By exploring the Tzolk’in calendar and the role of Nahual day-signs, we can gain insight into the spiritual practices and cultural values of the ancient Maya. This article aims to provide a comprehensive overview of Mayan astrology, shedding light on the significance of the Tzolk’in calendar and the Nahual signs within it.

The Tzolk’in calendar is a fundamental aspect of Mayan spirituality, serving as a tool for spiritual growth, self-discovery, and cosmic alignment. Each day is associated with a unique combination of two signs: the Tzolkin number (a 20-day cycle) and the Ahau number (a 13-day cycle). This intricate system allows for a vast array of possible combinations, resulting in 260 unique days. The Tzolk’in calendar is deeply intertwined with the Mayan concept of time, which is divided into three main periods: the past, present, and future.

Understanding the Tzolkin Number

The Tzolkin number is a 20-day cycle, comprising 13 Ahau days and 7 K’at days. This cycle is often divided into two main sections: the Ahau days, which represent the 13 solar days, and the K’at days, which represent the 7 dark days. The Ahau days are associated with the sun and its life-giving energy, while the K’at days represent the night and its mysterious, transformative power.

Deciphering the Ahau Number

The Ahau number is a 13-day cycle, representing the 13 solar days. Each Ahau day is associated with a unique glyph, which is used to determine the day’s energy and significance. The Ahau number is often linked to the sun and its life-giving energy, symbolizing courage, leadership, and creativity.

Ahau Day Sign Correlations

Ahau Day Sign English Translation Glyph
Imix Water Imix Glyph
Ik Electricity Ik Glyph
Aq’ab Red Aqab Glyph
Kan Water Kan Glyph
Chuen Traveller Chuen Glyph
Imix’ Water Imix Glyph
Manik Wind Manik Glyph
Lunax Moon Lunax Glyph
Chuen’. Traveller Chuen Glyph
Yaxkin Flint Yaxkin Glyph
Yaxk’in Flint Yaxkin Glyph
Etznab Obsidian Etznab Glyph
Cimi Death Cimi Glyph
Manik’. Wind Manik Glyph

K’at Day Sign Correlations

K’at Day Sign English Translation Glyph
Aha’. Sun Aha Glyph
Ma Water Ma Glyph
Chun Seed Chun Glyph
Imox Earth Imox Glyph
Yax Flint Yax Glyph
Chik’. Wind Chik Glyph
Uay Rain Uay Glyph
Haab Earth Haab Glyph
Lab’. Flint Lab Glyph
Chik. Wind Chik Glyph
Uay’. Rain Uay Glyph
Yaxkin’. Flint Yaxkin Glyph
Etznab’. Obsidian Etznab Glyph

Nahual Sign Significance

The Nahual sign, also known as the day-sign, plays a crucial role in Mayan astrology. Each Nahual sign is associated with a unique energy and significance, influencing the individual’s journey through life. The 13 Ahau days and 7 K’at days are often linked to specific animals and characteristics, providing insight into the individual’s strengths, weaknesses, and spiritual path.

Nahual Sign Correlations

Nahual Sign English Translation Animal/Energy
Imix Water Crocodile/Self-Empowerment
Ik Electricity Thunderbird/Dynamic Energy
Aq’ab Red Flint/Spiritual Energy
Kan Water Monkey/Playfulness
Chuen Traveller Jaguar/Spiritual Journey
Imix’. Water Crocodile/Self-Empowerment
Manik Wind Condor/Expansion
Lunax Moon Moon/Cycles
Chuen’. Traveller Jaguar/Spiritual Journey
Yaxkin Flint Flint/Spiritual Energy
Yaxk’in Flint Flint/Spiritual Energy
Etznab Obsidian Obsidian/Shadows
Cimi Death Death/Detachment
Manik’. Wind Condor/Expansion

Frequently Asked Questions

Q: What is the purpose of the Tzolk’in calendar?

A: The Tzolk’in calendar serves as a tool for spiritual growth, self-discovery, and cosmic alignment. It provides a framework for understanding the intricate relationships between time, energy, and human experience.

Q: How do the Ahau and K’at days relate to each other?

A: The Ahau and K’at days are two distinct cycles within the Tzolk’in calendar. The Ahau days represent the 13 solar days, while the K’at days represent the 7 dark days. Each cycle is associated with unique energies and characteristics, influencing the individual’s journey through life.

Q: What is the significance of the Nahual day-signs?

A: The Nahual day-signs hold great significance in Mayan astrology, representing unique energies and characteristics that influence the individual’s journey through life. Each sign is associated with specific animals and traits, providing insight into the individual’s strengths, weaknesses, and spiritual path.

Explore More

For a deeper understanding of Mayan astrology and the Tzolk’in calendar, visit the free, open archive at Mayan Library (mayanlibrary.org). Explore our collection of articles, videos, and resources on Mayan cosmology, mathematics, and culture.

References & Further Reading

  • INAH (Instituto Nacional de Antropología e Historia) – Official Website
  • UNESCO World Heritage – Official Website
  • Mesoweb – Official Website
  • FAMSI – Official Website
  • Smithsonian NMAI Living Maya Time – Official Website
  • Smithsonian – Official Website
  • Peabody Museum Harvard – Official Website
  • Mayan Library
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    The 20 Day-Signs
    01 · Imix — Crocodile 02 · Ikʼ — Wind 03 · Akʼbʼal — Night 04 · Kʼan — Maize 05 · Chikchan — Serpent 06 · Kimi — Death 07 · Manikʼ — Deer 08 · Lamat — Star 09 · Muluk — Water 10 · Ok — Dog 11 · Chuwen — Monkey 12 · Ebʼ — Road 13 · Bʼen — Reed 14 · Ix — Jaguar 15 · Men — Eagle 16 · Kibʼ — Waxing 17 · Kabʼan — Earth 18 · Etzʼnabʼ — Flint 19 · Kawak — Storm 20 · Ajaw — Sun
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